Fixes and move to jvmDemo (#286)

orx-camera/src/jvmDemo/kotlin/DemoCamera2D01.kt

@@ -0,0 +1,25 @@
+import org.openrndr.application
+import org.openrndr.color.ColorRGBa
+import org.openrndr.draw.loadFont
+import org.openrndr.extra.camera.Camera2D
+
+/**
+ * # Camera2D demo
+ *
+ * click and drag the mouse for panning, use the mouse wheel for zooming
+ */
+fun main() = application {
+    program {
+        val font = loadFont("demo-data/fonts/IBMPlexMono-Regular.ttf", 72.0)
+
+        extend(Camera2D())
+        extend {
+            drawer.circle(drawer.bounds.center, 300.0)
+
+            drawer.fontMap = font
+            drawer.fill = ColorRGBa.PINK
+            drawer.text("click and drag mouse", 50.0, 400.0)
+            drawer.text("use mouse wheel", 50.0, 500.0)
+        }
+    }
+}

orx-camera/src/jvmDemo/kotlin/DemoOrbitalCamera01.kt

@@ -0,0 +1,52 @@
+import org.openrndr.application
+import org.openrndr.color.ColorRGBa
+import org.openrndr.draw.DrawPrimitive
+import org.openrndr.extra.camera.AxisHelper
+import org.openrndr.extra.camera.GridHelper
+import org.openrndr.extra.camera.OrbitalCamera
+import org.openrndr.extra.camera.OrbitalControls
+import org.openrndr.extra.meshgenerators.boxMesh
+import org.openrndr.extra.meshgenerators.sphereMesh
+import org.openrndr.math.Vector3
+
+fun main() = application {
+    program {
+        val camera = OrbitalCamera(
+            Vector3.UNIT_Z * 90.0, Vector3.ZERO, 90.0, 0.1, 5000.0
+        )
+        val controls = OrbitalControls(camera, keySpeed = 10.0)
+        controls.userInteraction = false
+
+        val sphere = sphereMesh(radius = 25.0)
+        val cube = boxMesh(20.0, 20.0, 5.0, 5, 5, 2)
+
+        extend(camera)
+
+        // shows XYZ axes as RGB lines
+        extend(AxisHelper())
+
+        // debug ground plane
+        extend(GridHelper(100))
+
+        // adds mouse and keyboard bindings
+        extend(controls)
+
+        extend {
+            // mouse and keyboard input can be toggled on and off
+            controls.userInteraction = seconds.toInt() % 4 < 2
+
+            drawer.vertexBuffer(sphere, DrawPrimitive.LINE_LOOP)
+            drawer.vertexBuffer(cube, DrawPrimitive.LINE_LOOP)
+
+            drawer.stroke = if(controls.userInteraction) ColorRGBa.GREEN else ColorRGBa.WHITE
+            drawer.fill = null
+
+            repeat(10) {
+                drawer.translate(0.0, 0.0, 10.0)
+                // Note: 2D primitives are not optimized for 3D and can
+                // occlude each other
+                drawer.circle(0.0, 0.0, 50.0)
+            }
+        }
+    }
+}

orx-camera/src/jvmDemo/kotlin/DemoParametricOrbital01.kt

@@ -0,0 +1,37 @@
+import org.openrndr.WindowMultisample
+import org.openrndr.application
+import org.openrndr.color.ColorRGBa
+import org.openrndr.draw.DrawPrimitive
+import org.openrndr.draw.shadeStyle
+import org.openrndr.extra.camera.*
+import org.openrndr.extra.gui.GUI
+import org.openrndr.extra.gui.addTo
+import org.openrndr.extra.meshgenerators.boxMesh
+import org.openrndr.extra.meshgenerators.sphereMesh
+import org.openrndr.math.Vector3
+
+fun main() = application {
+    configure {
+        multisample = WindowMultisample.SampleCount(8)
+    }
+
+    program {
+        val gui = GUI()
+        val po = ParametricOrbital()
+        po.addTo(gui)
+        extend(gui)
+        extend(po)
+
+        val bm = boxMesh()
+        extend {
+            drawer.clear(ColorRGBa.PINK)
+            drawer.shadeStyle = shadeStyle {
+                fragmentTransform = """
+                    vec3 n = normalize(v_viewNormal) * 0.5 + 0.5;
+                    x_fill = vec4(n, 1.0); 
+                """.trimIndent()
+            }
+            drawer.vertexBuffer(bm, DrawPrimitive.TRIANGLES)
+        }
+    }
+}